CUSIP: 98419J206 | NYSE | Healthcare · Biotechnology | Small Cap | 256 institutional holders
5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.
| Holder | Shares | % of Class | Change | Event Date | vs 13F |
|---|---|---|---|---|---|
| 13G/AFMR LLC | 0 | 0.0% | Fell below 5% | Jul 31, 2026 | 1,605,532 sh (Jun 30, 2026) |
| 13G/AMorgan Stanley | 0 | 0.0% | Fell below 5% | Jul 31, 2026 | No 13F filer matched |
| 13D/ABVF Inc | 0 | 0.0% | Fell below 5% | Jul 14, 2026 | 7,593,303 sh (Jun 30, 2026) |
| 13DLigand Pharmaceuticals Incorporated | 8,062,678 | 47.0% | New 5%+ stake | Apr 27, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 7,593,303 | $322.7M | 8.3% | Core | Medium | San Francisco, CA | 2026-08-14 | |
| 1,697,167 | $72.1M | 0.0% | Core | Low | New York, NY | 2026-08-13 | |
| 1,605,532 | $68.2M | 0.0% | Growth | Medium | Boston, MA | 2026-08-13 | |
| 1,114,363 | $47.4M | 0.1% | Core | High | San Francisco, CA | 2026-08-14 | |
| 709,247 | $30.1M | 3.8% | Deep Value | High | New York, NY | 2026-08-14 | |
| 691,971 | $29.4M | 0.0% | Index | Very Low | New York, NY | 2026-08-07 | |
| 505,165 | $21.5M | 0.0% | Core | N/A | Malvern, PA | 2026-08-13 | |
| 338,374 | $14.4M | 1.3% | Agg Growth | Medium | Boston, MA | 2026-08-14 | |
| 245,321 | $10.4M | 0.0% | Index | Very Low | Boston, MA | 2026-08-12 | |
| 242,000 | $10.3M | 1.0% | Deep Value | Very High | New York, NY | 2026-08-14 | |
| 239,318 | $10.2M | 0.6% | Deep Value | Very High | Palm Beach, FL | 2026-08-06 | |
| 197,764 | $8.4M | 0.0% | Index | Very Low | Boston, MA | 2026-09-22 | |
| 196,307 | $8.3M | 0.0% | Core | Very High | New York, NY | 2026-08-14 | |
| 177,106 | $7.5M | 0.0% | Index | Low | Austin, TX | 2026-08-11 | |
| 149,523 | $6.3M | 0.0% | Core | Medium | London, United Kingdom | 2026-08-14 | |
| 96,179 | $4.1M | 0.0% | Index | Very Low | Chicago, IL | 2026-08-13 | |
| 90,348 | $3.8M | 0.0% | Core | N/A | Malvern, PA | 2026-08-13 | |
| 84,391 | $3.6M | 0.0% | Core | High | Stamford, CT | 2026-08-14 | |
| 83,623 | $3.6M | 0.0% | Growth | High | Bala Cynwyd, PA | 2026-08-14 | |
| 80,000 | $3.4M | 0.1% | Growth | High | Cohasset, MA | 2026-08-14 | |
| 75,348 | $3.2M | 0.0% | Core | Low | New York, NY | 2026-08-06 | |
| 70,601 | $3.0M | 0.0% | Value | High | Greenwich, CT | 2026-08-14 | |
| 70,189 | $3.0M | 0.0% | Core | N/A | Malvern, PA | 2026-08-13 | |
| 68,053 | $2.9M | 1.8% | Yield | High | Spokane, WA | 2026-08-06 | |
| 42,165 | $1.8M | 5.3% | Deep Value | High | Miami, FL | 2026-08-14 | |
| 36,744 | $1.6M | 0.0% | Value | High | New York, NY | 2026-08-14 | |
| 35,046 | $1.5M | 0.0% | Value | Very High | London, United Kingdom | 2026-08-14 | |
| 34,853 | $1.5M | 0.1% | Deep Value | Very High | Paris France, India | 2026-07-24 | |
| 34,621 | $1.5M | 0.0% | Core | Very High | Chicago, IL | 2026-08-14 | |
| 30,018 | $1.3M | 0.0% | Growth | Medium | New York, NY | 2026-08-12 | |
| 30,000 | $1.3M | 0.1% | Value | Low | Reno, NV | 2026-08-14 | |
| 28,460 | $1.2M | 0.0% | Core | Very High | Miami, FL | 2026-09-02 | |
| 28,078 | $1.2M | 0.0% | Index | Very Low | San Francisco, CA | 2026-08-14 | |
| 25,740 | $1.1M | 0.1% | Agg Growth | High | Incline Village, NV | 2026-07-20 | |
| 23,843 | $1.0M | 0.0% | Core | Medium | Zurich, Switzerland | 2026-08-13 | |
| 20,122 | $855.2K | 0.0% | Core | Medium | New York, NY | 2026-08-14 | |
| 19,561 | $831.3K | 0.0% | Deep Value | High | Chicago, IL | 2026-08-14 | |
| 18,388 | $781.5K | 0.0% | Core | Low | Charlotte, NC | 2026-08-11 | |
| 18,192 | $773.2K | 0.0% | Core | Very High | New York, NY | 2026-08-14 | |
| 12,200 | $518.5K | 0.0% | Value | Medium | Boston, MA | 2026-08-13 | |
| 11,451 | $486.7K | 0.0% | Index | Very Low | Boston, MA | 2026-08-12 | |
| 10,311 | $438.2K | 0.1% | Yield | Very High | Westport, CT | 2026-08-13 | |
| 10,000 | $425.0K | 0.1% | Core | Very Low | Milwaukee, WI | 2026-07-10 | |
| 9,250 | $393.1K | 0.0% | Core | Low | Birmingham, AL | 2026-08-10 | |
| 9,139 | $388.4K | 0.0% | Core | Medium | Frankfurt Am Main, Hong Kong | 2026-08-07 | |
| 8,495 | $361.0K | 0.0% | Core | Low | San Francisco, CA | 2026-08-14 | |
| 8,476 | $360.2K | 0.1% | Yield | Very High | New York, NY | 2026-08-14 | |
| 7,620 | $239.0K | 0.0% | Growth | Medium | Nashville, TN | 2026-08-14 | |
| 7,005 | $298.0K | 0.0% | Growth | Medium | Baltimore, MD | 2026-08-14 | |
| 6,878 | $292.3K | 0.0% | Core | Low | Charlotte, NC | 2026-08-14 | |
| 6,066 | $257.8K | 0.0% | Deep Value | Very High | New York, NY | 2026-08-14 | |
| 5,682 | $241.5K | 0.0% | GARP | Low | Oaks, PA | 2026-08-14 | |
| 5,677 | $241.3K | 0.0% | Core | Low | Whippany, NJ | 2026-08-14 | |
| 5,500 | $233.8K | 0.0% | GARP | Very High | New York, NY | 2026-08-14 | |
| 5,200 | $221.0K | 0.0% | Deep Value | Very High | Vancouver, UAE | 2026-08-17 | |
| 4,996 | $212.3K | 0.0% | Growth | Low | Atlanta, GA | 2026-08-14 | |
| 4,958 | $210.7K | 0.0% | Index | Low | St. Petersburg, FL | 2026-08-14 | |
| 4,891 | $207.9K | 0.0% | Core | Very High | Chicago, IL | 2026-08-12 | |
| 4,762 | $202.4K | 0.0% | Index | Low | Albany, NY | 2026-07-29 | |
| 4,560 | $193.8K | 0.0% | Core | Medium | New York, NY | 2026-08-03 | |
| 4,511 | $192.0K | 0.0% | Growth | High | New York, NY | 2026-08-07 | |
| 4,258 | $181.0K | 0.0% | Core | Low | Causeway Bay, South Korea | 2026-08-14 | |
| 4,046 | $172.0K | 0.0% | Core | N/A | Malvern, PA | 2026-08-13 | |
| 3,233 | $137.4K | 0.0% | Core | Low | Seattle, WA | 2026-08-06 | |
| 2,856 | $121.4K | 0.0% | Index | Very Low | Trenton, NJ | 2026-07-23 | |
| 2,139 | $90.9K | 0.0% | Value | Very High | Chicago, IL | 2026-08-14 | |
| 1,592 | $67.7K | 0.0% | Core | Medium | Paris, India | 2026-08-13 | |
| 1,400 | $59.5K | 0.0% | Core | Medium | London, United Kingdom | 2026-08-14 | |
| 1,217 | $51.7K | 0.0% | Index | Low | Scottsdale, AZ | 2026-08-14 | |
| 1,050 | $44 | 0.0% | Core | Very Low | Juneau, AK | 2026-07-20 | |
| 959 | $40.8K | 0.0% | Core | Low | Lincoln, NE | 2026-08-13 | |
| 854 | $36.3K | 0.0% | Index | Very Low | London, United Kingdom | 2026-08-14 | |
| 600 | $25.5K | 0.0% | Core | Low | Feasterville, PA | 2026-07-28 | |
| 587 | $25.0K | 0.0% | Core | Low | Toronto, Australia | 2026-08-14 | |
| 470 | $20.0K | 0.0% | GARP | Very High | New York, NY | 2026-08-11 | |
| 372 | $15.8K | 0.0% | GARP | High | Paris, India | 2026-08-13 | |
| 366 | $15.6K | 0.0% | Index | Very Low | St. Louis, MO | 2026-08-10 | |
| 290 | $12.3K | 0.0% | GARP | Low | Sarasota, FL | 2026-08-12 | |
| 283 | $12.0K | 0.0% | Growth | Low | New York, NY | 2026-08-13 | |
| 152 | $6.5K | 0.0% | Index | Very Low | Foster City, CA | 2026-07-07 | |
| 128 | $5.4K | 0.0% | Index | Very Low | West Sacramento, CA | 2026-08-24 | |
| 86 | $3.7K | 0.0% | Yield | Very High | New York, NY | 2026-08-14 | |
| 78 | $3.3K | 0.0% | GARP | Medium | Charlotte, NC | 2026-07-28 | |
| 68 | $2.9K | 0.0% | Growth | Very High | Hong Kong, South Korea | 2026-08-05 | |
| 67 | $2.8K | 0.0% | Index | Low | Minneapolis, MN | 2026-08-12 | |
| 47 | $2.0K | 0.0% | GARP | Very High | Amsterdam, Philippines | 2026-08-12 | |
Ancora Advisors LLCActivist | 31 | $1.3K | 0.0% | Value | Medium | Cleveland, OH | 2026-08-14 |
| 25 | $1.1K | 0.0% | Core | Medium | Birmingham, AL | 2026-07-24 | |
| 21 | $893 | 0.0% | Index | Low | Folsom, CA | 2026-08-11 | |
| 20 | $850 | 0.0% | Yield | Low | Carlsbad, CA | 2026-07-28 | |
| 10 | $425 | 0.0% | Growth | Low | St Louis, MO | 2026-08-14 | |
| 10 | $425 | 0.0% | Agg Growth | Low | Tokyo, Mexico | 2026-07-23 | |
| 8 | $0 | 0.0% | Value | High | London, United Kingdom | 2026-08-07 | |
| 8 | $340 | 0.0% | Index | Low | San Francisco, CA | 2026-07-17 | |
| 7 | $299 | 0.0% | Growth | Very Low | Pittsburgh, PA | 2026-08-07 | |
| 3 | $128 | 0.0% | Index | Low | Chicago, IL | 2026-08-06 | |
| 3 | $128 | 0.0% | Core | High | New York, NY | 2026-08-10 | |
| 1 | $43 | 0.0% | Core | Low | Toronto, Australia | 2026-07-27 |